furnace/extern/fftw/rdft/scalar/r2cf/hc2cf_2.c

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/*
* Copyright (c) 2003, 2007-14 Matteo Frigo
* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
/* This file was automatically generated --- DO NOT EDIT */
/* Generated on Tue Sep 14 10:46:31 EDT 2021 */
#include "rdft/codelet-rdft.h"
#if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
/* Generated by: ../../../genfft/gen_hc2c.native -fma -compact -variables 4 -pipeline-latency 4 -n 2 -dit -name hc2cf_2 -include rdft/scalar/hc2cf.h */
/*
* This function contains 6 FP additions, 4 FP multiplications,
* (or, 4 additions, 2 multiplications, 2 fused multiply/add),
* 11 stack variables, 0 constants, and 8 memory accesses
*/
#include "rdft/scalar/hc2cf.h"
static void hc2cf_2(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
{
{
INT m;
for (m = mb, W = W + ((mb - 1) * 2); m < me; m = m + 1, Rp = Rp + ms, Ip = Ip + ms, Rm = Rm - ms, Im = Im - ms, W = W + 2, MAKE_VOLATILE_STRIDE(8, rs)) {
E T1, Ta, T3, T6, T4, T8, T2, T7, T9, T5;
T1 = Rp[0];
Ta = Rm[0];
T3 = Ip[0];
T6 = Im[0];
T2 = W[0];
T4 = T2 * T3;
T8 = T2 * T6;
T5 = W[1];
T7 = FMA(T5, T6, T4);
T9 = FNMS(T5, T3, T8);
Rm[0] = T1 - T7;
Im[0] = T9 - Ta;
Rp[0] = T1 + T7;
Ip[0] = T9 + Ta;
}
}
}
static const tw_instr twinstr[] = {
{ TW_FULL, 1, 2 },
{ TW_NEXT, 1, 0 }
};
static const hc2c_desc desc = { 2, "hc2cf_2", twinstr, &GENUS, { 4, 2, 2, 0 } };
void X(codelet_hc2cf_2) (planner *p) {
X(khc2c_register) (p, hc2cf_2, &desc, HC2C_VIA_RDFT);
}
#else
/* Generated by: ../../../genfft/gen_hc2c.native -compact -variables 4 -pipeline-latency 4 -n 2 -dit -name hc2cf_2 -include rdft/scalar/hc2cf.h */
/*
* This function contains 6 FP additions, 4 FP multiplications,
* (or, 4 additions, 2 multiplications, 2 fused multiply/add),
* 9 stack variables, 0 constants, and 8 memory accesses
*/
#include "rdft/scalar/hc2cf.h"
static void hc2cf_2(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
{
{
INT m;
for (m = mb, W = W + ((mb - 1) * 2); m < me; m = m + 1, Rp = Rp + ms, Ip = Ip + ms, Rm = Rm - ms, Im = Im - ms, W = W + 2, MAKE_VOLATILE_STRIDE(8, rs)) {
E T1, T8, T6, T7;
T1 = Rp[0];
T8 = Rm[0];
{
E T3, T5, T2, T4;
T3 = Ip[0];
T5 = Im[0];
T2 = W[0];
T4 = W[1];
T6 = FMA(T2, T3, T4 * T5);
T7 = FNMS(T4, T3, T2 * T5);
}
Rm[0] = T1 - T6;
Im[0] = T7 - T8;
Rp[0] = T1 + T6;
Ip[0] = T7 + T8;
}
}
}
static const tw_instr twinstr[] = {
{ TW_FULL, 1, 2 },
{ TW_NEXT, 1, 0 }
};
static const hc2c_desc desc = { 2, "hc2cf_2", twinstr, &GENUS, { 4, 2, 2, 0 } };
void X(codelet_hc2cf_2) (planner *p) {
X(khc2c_register) (p, hc2cf_2, &desc, HC2C_VIA_RDFT);
}
#endif